Examples with ManagedSelector org.eclipse.jetty.io.ManagedSelector used on opensource projects

Example 1 with ManagedSelector

use of org.eclipse.jetty.io.ManagedSelector in project jetty.project by eclipse.

the class HTTP2ServerTest method testCommitFailure.

@Test
public void testCommitFailure() throws Exception {
    final long delay = 1000;
    final AtomicBoolean broken = new AtomicBoolean();
    startServer(new HttpServlet() {

        @Override
        protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            try {
                // Wait for the SETTINGS frames to be exchanged.
                Thread.sleep(delay);
                broken.set(true);
            } catch (InterruptedException x) {
                throw new InterruptedIOException();
            }
        }
    });
    server.stop();
    ServerConnector connector2 = new ServerConnector(server, new HTTP2ServerConnectionFactory(new HttpConfiguration())) {

        @Override
        protected ChannelEndPoint newEndPoint(SocketChannel channel, ManagedSelector selectSet, SelectionKey key) throws IOException {
            return new SocketChannelEndPoint(channel, selectSet, key, getScheduler()) {

                @Override
                public void write(Callback callback, ByteBuffer... buffers) throws IllegalStateException {
                    if (broken.get())
                        callback.failed(new IOException("explicitly_thrown_by_test"));
                    else
                        super.write(callback, buffers);
                }
            };
        }
    };
    server.addConnector(connector2);
    server.start();
    ByteBufferPool.Lease lease = new ByteBufferPool.Lease(byteBufferPool);
    generator.control(lease, new PrefaceFrame());
    generator.control(lease, new SettingsFrame(new HashMap<>(), false));
    MetaData.Request metaData = newRequest("GET", new HttpFields());
    generator.control(lease, new HeadersFrame(1, metaData, null, true));
    try (Socket client = new Socket("localhost", connector2.getLocalPort())) {
        OutputStream output = client.getOutputStream();
        for (ByteBuffer buffer : lease.getByteBuffers()) output.write(BufferUtil.toArray(buffer));
        // The server will close the connection abruptly since it
        // cannot write and therefore cannot even send the GO_AWAY.
        Parser parser = new Parser(byteBufferPool, new Parser.Listener.Adapter(), 4096, 8192);
        boolean closed = parseResponse(client, parser, 2 * delay);
        Assert.assertTrue(closed);
    }
}

Example 2 with ManagedSelector

use of org.eclipse.jetty.io.ManagedSelector in project jetty.project by eclipse.

the class ThreadStarvationTest method testDefaultServletSuccess.

@Test
@Slow
public void testDefaultServletSuccess() throws Exception {
    int maxThreads = 10;
    QueuedThreadPool threadPool = new QueuedThreadPool(maxThreads, maxThreads);
    threadPool.setDetailedDump(true);
    _server = new Server(threadPool);
    // Prepare a big file to download.
    File directory = MavenTestingUtils.getTargetTestingDir();
    Files.createDirectories(directory.toPath());
    String resourceName = "resource.bin";
    Path resourcePath = Paths.get(directory.getPath(), resourceName);
    try (OutputStream output = Files.newOutputStream(resourcePath, StandardOpenOption.CREATE, StandardOpenOption.WRITE)) {
        byte[] chunk = new byte[1024];
        Arrays.fill(chunk, (byte) 'X');
        chunk[chunk.length - 2] = '\r';
        chunk[chunk.length - 1] = '\n';
        for (int i = 0; i < 256 * 1024; ++i) output.write(chunk);
    }
    final CountDownLatch writePending = new CountDownLatch(1);
    ServerConnector connector = new ServerConnector(_server, 0, 1) {

        @Override
        protected ChannelEndPoint newEndPoint(SocketChannel channel, ManagedSelector selectSet, SelectionKey key) throws IOException {
            return new SocketChannelEndPoint(channel, selectSet, key, getScheduler()) {

                @Override
                protected void onIncompleteFlush() {
                    super.onIncompleteFlush();
                    writePending.countDown();
                }
            };
        }
    };
    connector.setIdleTimeout(Long.MAX_VALUE);
    _server.addConnector(connector);
    ServletContextHandler context = new ServletContextHandler(_server, "/");
    context.setResourceBase(directory.toURI().toString());
    context.addServlet(DefaultServlet.class, "/*").setAsyncSupported(false);
    _server.setHandler(context);
    _server.start();
    List<Socket> sockets = new ArrayList<>();
    for (int i = 0; i < maxThreads * 2; ++i) {
        Socket socket = new Socket("localhost", connector.getLocalPort());
        sockets.add(socket);
        OutputStream output = socket.getOutputStream();
        String request = "" + "GET /" + resourceName + " HTTP/1.1\r\n" + "Host: localhost\r\n" + "\r\n";
        output.write(request.getBytes(StandardCharsets.UTF_8));
        output.flush();
        Thread.sleep(100);
    }
    // Wait for a the servlet to block.
    Assert.assertTrue(writePending.await(5, TimeUnit.SECONDS));
    long expected = Files.size(resourcePath);
    byte[] buffer = new byte[48 * 1024];
    List<Exchanger<Long>> totals = new ArrayList<>();
    for (Socket socket : sockets) {
        final Exchanger<Long> x = new Exchanger<>();
        totals.add(x);
        final InputStream input = socket.getInputStream();
        new Thread() {

            @Override
            public void run() {
                long total = 0;
                try {
                    // look for CRLFCRLF
                    StringBuilder header = new StringBuilder();
                    int state = 0;
                    while (state < 4 && header.length() < 2048) {
                        int ch = input.read();
                        if (ch < 0)
                            break;
                        header.append((char) ch);
                        switch(state) {
                            case 0:
                                if (ch == '\r')
                                    state = 1;
                                break;
                            case 1:
                                if (ch == '\n')
                                    state = 2;
                                else
                                    state = 0;
                                break;
                            case 2:
                                if (ch == '\r')
                                    state = 3;
                                else
                                    state = 0;
                                break;
                            case 3:
                                if (ch == '\n')
                                    state = 4;
                                else
                                    state = 0;
                                break;
                        }
                    }
                    while (total < expected) {
                        int read = input.read(buffer);
                        if (read < 0)
                            break;
                        total += read;
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                } finally {
                    try {
                        x.exchange(total);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }.start();
    }
    for (Exchanger<Long> x : totals) {
        Long total = x.exchange(-1L, 10000, TimeUnit.SECONDS);
        Assert.assertEquals(expected, total.longValue());
    }
    // We could read everything, good.
    for (Socket socket : sockets) socket.close();
}

Example 3 with ManagedSelector

use of org.eclipse.jetty.io.ManagedSelector in project jetty.project by eclipse.

the class SslBytesServerTest method init.

@Before
public void init() throws Exception {
    threadPool = Executors.newCachedThreadPool();
    server = new Server();
    File keyStore = MavenTestingUtils.getTestResourceFile("keystore.jks");
    sslContextFactory = new SslContextFactory();
    sslContextFactory.setKeyStorePath(keyStore.getAbsolutePath());
    sslContextFactory.setKeyStorePassword("storepwd");
    HttpConnectionFactory httpFactory = new HttpConnectionFactory() {

        @Override
        public Connection newConnection(Connector connector, EndPoint endPoint) {
            return configure(new HttpConnection(getHttpConfiguration(), connector, endPoint, getHttpCompliance(), isRecordHttpComplianceViolations()) {

                @Override
                protected HttpParser newHttpParser(HttpCompliance compliance) {
                    return new HttpParser(newRequestHandler(), getHttpConfiguration().getRequestHeaderSize(), compliance) {

                        @Override
                        public boolean parseNext(ByteBuffer buffer) {
                            httpParses.incrementAndGet();
                            return super.parseNext(buffer);
                        }
                    };
                }

                @Override
                protected boolean onReadTimeout() {
                    final Runnable idleHook = SslBytesServerTest.this.idleHook;
                    if (idleHook != null)
                        idleHook.run();
                    return super.onReadTimeout();
                }
            }, connector, endPoint);
        }
    };
    httpFactory.getHttpConfiguration().addCustomizer(new SecureRequestCustomizer());
    SslConnectionFactory sslFactory = new SslConnectionFactory(sslContextFactory, httpFactory.getProtocol()) {

        @Override
        protected SslConnection newSslConnection(Connector connector, EndPoint endPoint, SSLEngine engine) {
            return new SslConnection(connector.getByteBufferPool(), connector.getExecutor(), endPoint, engine) {

                @Override
                protected DecryptedEndPoint newDecryptedEndPoint() {
                    return new DecryptedEndPoint() {

                        @Override
                        public int fill(ByteBuffer buffer) throws IOException {
                            sslFills.incrementAndGet();
                            return super.fill(buffer);
                        }

                        @Override
                        public boolean flush(ByteBuffer... appOuts) throws IOException {
                            sslFlushes.incrementAndGet();
                            return super.flush(appOuts);
                        }
                    };
                }
            };
        }
    };
    ServerConnector connector = new ServerConnector(server, null, null, null, 1, 1, sslFactory, httpFactory) {

        @Override
        protected ChannelEndPoint newEndPoint(SocketChannel channel, ManagedSelector selectSet, SelectionKey key) throws IOException {
            ChannelEndPoint endp = super.newEndPoint(channel, selectSet, key);
            serverEndPoint.set(endp);
            return endp;
        }
    };
    connector.setIdleTimeout(idleTimeout);
    connector.setPort(0);
    server.addConnector(connector);
    server.setHandler(new AbstractHandler() {

        @Override
        public void handle(String target, Request request, HttpServletRequest httpRequest, HttpServletResponse httpResponse) throws IOException, ServletException {
            try {
                request.setHandled(true);
                String contentLength = request.getHeader("Content-Length");
                if (contentLength != null) {
                    int length = Integer.parseInt(contentLength);
                    ServletInputStream input = httpRequest.getInputStream();
                    ServletOutputStream output = httpResponse.getOutputStream();
                    byte[] buffer = new byte[32 * 1024];
                    while (length > 0) {
                        int read = input.read(buffer);
                        if (read < 0)
                            throw new EOFException();
                        length -= read;
                        if (target.startsWith("/echo"))
                            output.write(buffer, 0, read);
                    }
                }
            } catch (IOException x) {
                if (!(target.endsWith("suppress_exception")))
                    throw x;
            }
        }
    });
    server.start();
    serverPort = connector.getLocalPort();
    sslContext = sslContextFactory.getSslContext();
    proxy = new SimpleProxy(threadPool, "localhost", serverPort);
    proxy.start();
    logger.info("proxy:{} <==> server:{}", proxy.getPort(), serverPort);
}

Example 4 with ManagedSelector

use of org.eclipse.jetty.io.ManagedSelector in project jetty.project by eclipse.

the class ThreadStarvationTest method testFailureStarvation.

@Test
public void testFailureStarvation() throws Exception {
    try (StacklessLogging stackless = new StacklessLogging(HttpChannel.class)) {
        int acceptors = 0;
        int selectors = 1;
        int maxThreads = 10;
        final int barried = maxThreads - acceptors - selectors * 2;
        final CyclicBarrier barrier = new CyclicBarrier(barried);
        QueuedThreadPool threadPool = new QueuedThreadPool(maxThreads, maxThreads);
        threadPool.setDetailedDump(true);
        _server = new Server(threadPool);
        ServerConnector connector = new ServerConnector(_server, acceptors, selectors) {

            @Override
            protected ChannelEndPoint newEndPoint(SocketChannel channel, ManagedSelector selectSet, SelectionKey key) throws IOException {
                return new SocketChannelEndPoint(channel, selectSet, key, getScheduler()) {

                    @Override
                    public boolean flush(ByteBuffer... buffers) throws IOException {
                        super.flush(buffers[0]);
                        throw new IOException("TEST FAILURE");
                    }
                };
            }
        };
        connector.setIdleTimeout(Long.MAX_VALUE);
        _server.addConnector(connector);
        final AtomicInteger count = new AtomicInteger(0);
        _server.setHandler(new AbstractHandler() {

            @Override
            public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
                int c = count.getAndIncrement();
                try {
                    if (c < barried) {
                        barrier.await(10, TimeUnit.SECONDS);
                    }
                } catch (InterruptedException | BrokenBarrierException | TimeoutException e) {
                    throw new ServletException(e);
                }
                baseRequest.setHandled(true);
                response.setStatus(200);
                response.setContentLength(13);
                response.getWriter().print("Hello World!\n");
                response.getWriter().flush();
            }
        });
        _server.start();
        List<Socket> sockets = new ArrayList<>();
        for (int i = 0; i < maxThreads * 2; ++i) {
            Socket socket = new Socket("localhost", connector.getLocalPort());
            sockets.add(socket);
            OutputStream output = socket.getOutputStream();
            String request = "" + "GET / HTTP/1.1\r\n" + "Host: localhost\r\n" + //                    "Connection: close\r\n" +
            "\r\n";
            output.write(request.getBytes(StandardCharsets.UTF_8));
            output.flush();
        }
        byte[] buffer = new byte[48 * 1024];
        List<Exchanger<Integer>> totals = new ArrayList<>();
        for (Socket socket : sockets) {
            final Exchanger<Integer> x = new Exchanger<>();
            totals.add(x);
            final InputStream input = socket.getInputStream();
            new Thread() {

                @Override
                public void run() {
                    int read = 0;
                    try {
                        // look for CRLFCRLF
                        StringBuilder header = new StringBuilder();
                        int state = 0;
                        while (state < 4 && header.length() < 2048) {
                            int ch = input.read();
                            if (ch < 0)
                                break;
                            header.append((char) ch);
                            switch(state) {
                                case 0:
                                    if (ch == '\r')
                                        state = 1;
                                    break;
                                case 1:
                                    if (ch == '\n')
                                        state = 2;
                                    else
                                        state = 0;
                                    break;
                                case 2:
                                    if (ch == '\r')
                                        state = 3;
                                    else
                                        state = 0;
                                    break;
                                case 3:
                                    if (ch == '\n')
                                        state = 4;
                                    else
                                        state = 0;
                                    break;
                            }
                        }
                        read = input.read(buffer);
                    } catch (IOException e) {
                    // e.printStackTrace();
                    } finally {
                        try {
                            x.exchange(read);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }.start();
        }
        for (Exchanger<Integer> x : totals) {
            Integer read = x.exchange(-1, 10, TimeUnit.SECONDS);
            Assert.assertEquals(-1, read.intValue());
        }
        // We could read everything, good.
        for (Socket socket : sockets) socket.close();
        _server.stop();
    }
}